A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5905-01-415-2902
NSN 6105-00-867-3431
NSN 7035-01-224-5165
NSN 5910-01-316-7989
NSN 5905-00-894-2136
NSN 4140-01-613-6427
NSN 6220-00-075-0531
NSN 6620-01-087-2354
NSN 5920-01-386-5798
NSN 5996-01-080-0301
NSN 2925-01-645-2948
NSN 6110-01-423-1655